Good Riddles

Question: A lady just married a man. They do not have enough money to stay in a decent hotel. The couple stays with the man's mother. The man's mother has a jar full of lima beans, the lady's favourite food. The lady takes one lima bean each day they stay. The man's mother suspects the lady's theiving, but does not say a word. One day, the man's mother and wife are cleaning the kitchen together. The lady sees the man's mother looking at her eying the jar, now half full of lima beans. The lady finds one on the counter top and holds it up to the man's mother. She says three words that relieves the man's mother's suspection. What are those three words?

Question: Tommy is in a cave. He stops to find two tunnels. There is a guard before each tunnel. Tommy knows two things: 1. One tunnel leads to the fields of punishment and the other fields of rewards 2. One guard always lies and the other always tells the truth. Tommy can only ask one yes or no question to either one of the guards. The tunnels and guards look exactly the same. What question can Tommy ask to get to the fields of rewards and not death?

Question: what is yours but you can't actually hold ?

Question: How much is a good night sleep worth?

Question: What lightens the light and darkens the dark?